ISSN:0031-921X    

DOI:10.1119/1.880088

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

ISSN:0031-921X    

DOI:10.1119/1.880091

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

ISSN:0031-921X    

DOI:10.1119/1.880094

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

The rest of the world has calendar years and fiscal years, but we have school years. Summer has done. Happy New Year! New years call for resolutions. Each of us must draw up our own resolutions, but here are some items from my list.

ISSN:0031-921X    

DOI:10.1119/1.880098

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

This article examines long-term historical trends in physics B.S. production, and possible factors responsible for those trends. The factors considered include: a changing profile of college entrants, the increasing lure of engineering, differential grade inflation, old-fashioned pedagogy, and poor teaching. Finally, the article considers whether it matters to society whether physics major enrollments continue to decline.

ISSN:0031-921X    

DOI:10.1119/1.880099

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

We develop a simple method to determine the acceleration of a mass relative to a moving wedge on which the mass slides down.

ISSN:0031-921X    

DOI:10.1119/1.880100

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

The note discusses electrical power and energy and includes possible labs to be used in a physics classroom. It is based on our experimentation with a new device called the Watt-Watt/Hour Meter, which displays instantaneous power and cumulative energy readings of household electrical devices. Our experiments utilized this meter in conjunction with various appliances and focused primarily on its use with a refrigerator.

ISSN:0031-921X    

DOI:10.1119/1.880101

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

TI-TIMER is a menu-driven timing program designed to run on a TI-85 calculator. It can be calibrated, records multiple time trials, and displays both a list of these trials and an average time value. The note includes information on obtaining this program.

ISSN:0031-921X    

DOI:10.1119/1.880102

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

In this note, we describe a simple modification of the smoke cell experiment, which enables us to project the Brownian motion of smoke soot on a screen for demonstration. The key changes include the use of a laser pointer for illumination and a microvideo outfit for projection.

ISSN:0031-921X    

DOI:10.1119/1.880103

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP

摘要:

Without making any measurements, can you prove that the height of a can of tennis balls is less than the circumference of a ball?

ISSN:0031-921X    

DOI:10.1119/1.1527613

出版商:American Association of Physics Teachers    

年代:1998

数据来源: AIP